aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/video/saa7134/saa7134-ts.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-ts.c')
-rw-r--r--drivers/media/video/saa7134/saa7134-ts.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/media/video/saa7134/saa7134-ts.c b/drivers/media/video/saa7134/saa7134-ts.c
index 03488ba4c99..b9817d74943 100644
--- a/drivers/media/video/saa7134/saa7134-ts.c
+++ b/drivers/media/video/saa7134/saa7134-ts.c
@@ -250,6 +250,19 @@ int saa7134_ts_start(struct saa7134_dev *dev)
BUG_ON(dev->ts_started);
+ /* dma: setup channel 5 (= TS) */
+ saa_writeb(SAA7134_TS_DMA0, (dev->ts.nr_packets - 1) & 0xff);
+ saa_writeb(SAA7134_TS_DMA1,
+ ((dev->ts.nr_packets - 1) >> 8) & 0xff);
+ /* TSNOPIT=0, TSCOLAP=0 */
+ saa_writeb(SAA7134_TS_DMA2,
+ (((dev->ts.nr_packets - 1) >> 16) & 0x3f) | 0x00);
+ saa_writel(SAA7134_RS_PITCH(5), TS_PACKET_SIZE);
+ saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_16 |
+ SAA7134_RS_CONTROL_ME |
+ (dev->ts.pt_ts.dma >> 12));
+
+ /* reset hardware TS buffers */
saa_writeb(SAA7134_TS_SERIAL1, 0x00);
saa_writeb(SAA7134_TS_SERIAL1, 0x03);
saa_writeb(SAA7134_TS_SERIAL1, 0x00);